Articles with "iridium oxide" as a keyword



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Well Controlled 3D Iridium Oxide/Platinum Nanocomposites with Greatly Enhanced Electrochemical Performances

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Published in 2019 at "Advanced Materials Interfaces"

DOI: 10.1002/admi.201900356

Abstract: It is crucial to improve charge storage capacity (CSC) and charge transport efficiency with low impedance for electrochemical capacitors. Here, a well‐controlled three‐dimensional (3D) nanocrystal platinum (Pt) is electrodeposited as the intermediate layer on microelectrode… read more here.

Keywords: oxide platinum; iridium oxide; controlled iridium; well controlled ... See more keywords
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Multistage Electron Distribution Engineering of Iridium Oxide by Codoping W and Sn for Enhanced Acidic Water Oxidation Electrocatalysis.

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Published in 2022 at "Small"

DOI: 10.1002/smll.202203365

Abstract: Developing efficient and robust anodic electrocatalysts to implement the proton-exchange membrane (PEM) electrolyzer is critical for hydrogen generation. Nevertheless, the only known applicable anode catalyst IrOx in PEM electrolyzers still requires high overpotential due to… read more here.

Keywords: multistage; engineering iridium; electron distribution; iridium oxide ... See more keywords
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Rhenium Suppresses Iridium (IV) Oxide Crystallization and Enables Efficient, Stable Electrochemical Water Oxidation.

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Published in 2023 at "Small"

DOI: 10.1002/smll.202207847

Abstract: IrO2 as benchmark electrocatalyst for acidic oxygen evolution reaction (OER) suffers from its low activity and poor stability. Modulating the coordination environment of IrO2 by chemical doping is a methodology to suppress Ir dissolution and… read more here.

Keywords: oxide crystallization; methodology; crystallization enables; rhenium suppresses ... See more keywords
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"Click" Methodology for the Functionalization of Water Oxidation Catalyst Iridium Oxide Nanoparticles with Hydrophobic Dyes for Artificial Photosynthetic Constructs.

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Published in 2018 at "Methods in molecular biology"

DOI: 10.1007/978-1-4939-7786-4_19

Abstract: The unusually high tolerance toward chemical functional groups of the copper(I)-catalyzed Huisgen-Sharpless-Meldal 1,3-dipolar cycloaddition of azides and alkynes protocol (the CuAAC or "click" reaction) associated with its mild conditions and high yields has been explored… read more here.

Keywords: methodology; iridium oxide; oxide nanoparticles; water oxidation ... See more keywords
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Fabrication of high energy density supercapacitor device based on hollow iridium oxide nanofibers by single nozzle electrospinning

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Published in 2021 at "Applied Surface Science"

DOI: 10.1016/j.apsusc.2021.149102

Abstract: Abstract Herein, we have synthesized iridium oxide (IrO2) nanofibers using electrospinning technique and optimization of annealing temperature is undertaken in order to obtain high quality IrO2 nanofibers. The annealing temperature is varied as 200, 300,… read more here.

Keywords: supercapacitor; energy density; density; high energy ... See more keywords
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Improving the CO2 electrochemical reduction to formic acid using iridium-oxide-modified boron-doped diamond electrodes

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Published in 2020 at "Diamond and Related Materials"

DOI: 10.1016/j.diamond.2020.107874

Abstract: Abstract Modification of iridium on the surface of boron-doped diamond (BDD) electrode has been performed to decrease the overpotential reduction of carbon dioxide (CO2) and produce value-added carbon compounds. The modification was performed using the… read more here.

Keywords: reduction; doped diamond; iridium oxide; boron doped ... See more keywords
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Tungsten trioxide nanowires decorated with iridium oxide nanoparticles as gas sensing material

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Published in 2020 at "Journal of Alloys and Compounds"

DOI: 10.1016/j.jallcom.2019.152156

Abstract: Abstract Tungsten trioxide nanowires were grown employing aerosol assisted chemical vapor deposition (AACVD) and subsequently decorated with different loading levels of iridium oxide nanoparticles. AACVD has been already demonstrated to be a useful tool to… read more here.

Keywords: iridium oxide; tungsten trioxide; trioxide nanowires; oxide nanoparticles ... See more keywords
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Active Learning Accelerated Discovery of Stable Iridium Oxide Polymorphs for the Oxygen Evolution Reaction

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Published in 2020 at "Chemistry of Materials"

DOI: 10.1021/acs.chemmater.0c01894

Abstract: The discovery of high-performing and stable materials for sustainable energy applications is a pressing goal in catalysis and materials science. Understanding the relationship between a material’s ... read more here.

Keywords: active learning; iridium oxide; accelerated discovery; learning accelerated ... See more keywords
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Efficiency of Oxygen Evolution on Iridium Oxide Determined from the pH Dependence of Charge Accumulation

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Published in 2017 at "Journal of Physical Chemistry C"

DOI: 10.1021/acs.jpcc.7b03749

Abstract: The oxygen evolution reaction (OER; 2H2O → O2 + 4H+ + 4e–) is being intensively studied to generate fossil fuel-independent energy carriers. As 4d/5d rare metal catalysts, such as amorphous iridium oxide (IrOx), display higher… read more here.

Keywords: oxygen; iridium oxide; oxygen evolution; iridium ... See more keywords
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Water oxidation intermediates on iridium oxide electrodes probed by in situ electrochemical SHINERS.

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Published in 2020 at "Chemical communications"

DOI: 10.1039/c9cc08284k

Abstract: Shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS) is applied to the study of a state-of-the-art water oxidation electrocatalyst, IrOx, during oxygen evolution. The excellent sensitivity allows for in situ detection of surface intermediate species during cyclic voltammetry.… read more here.

Keywords: iridium oxide; oxidation intermediates; water; water oxidation ... See more keywords
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Recent advances in understanding oxygen evolution reaction mechanisms over iridium oxide

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Published in 2021 at "Inorganic chemistry frontiers"

DOI: 10.1039/d0qi01465f

Abstract: Water electrolysis driven by renewable energy can produce clean hydrogen, but its efficiency remains low, in part because of slow kinetics at the anode for the oxygen evolution reaction (OER). Learning from the most active… read more here.

Keywords: evolution reaction; oxygen evolution; reaction; iridium ... See more keywords